having a little trouble following the steps to complete this problem.

Question

Rewrite each expression with a positive ration exponent. Simplify if possible:

16^-3/4

Answer 1

16^-3/4
= 1/16^(3/4)
= 1/(16^(1/4))^3
= 1/2^3
= 1/8

Answer 2

thanks!